Cleaner for ship&#39;s hulls and the like.



W. R. MACDONALD. CLEANER FOR SHIPS HULLS AND THE LIKE. APPLICATION FILED JAN. 27, 1908. RENEWED FEB. 11, 1910.

95%,455 u Patented Mar. 22, 1910 3 SHEETS-SHEET 1.

M/ITNESSES lino/awn ANDREW a GRAHAM 00.. vnormumcsmwzns. wAsmNsTuN, m;

W. R. MACDONALD. CLEANER FOR SHIPS HULLS AND THE LIKE. APPLIGATION FILED JAIL27, 1908. RENEWED FEB.11, 1910.

Patented 171M122, 1M0.

SSHEETS-SHEET 2.

Inventor. me

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CGiIncssCsQ Ammo/Q ANDREW B GRAHAM CO4 PMDD-UYNQOMPHERS. WABNINGTONv D C.

W. R. MACDONALD.

CLEANER FOR SHIPS HULLS AND THE LIKE. APPLICATION FILED 11111.27, 1908. RBNEWEDFEB. 11. 1910.

Patented Mar. 22, 1910.

3SHEETS-SHEET 3.

ldiinessefi Attorney.

ANDREW A 90111104 00.v MOTO-LITHQGRAPHERS, wAsmNGTM. n,

WILLIAM R. MACDONALD, OF LONDON, ENGLAND.

CLEANER FOR SHIPS HULLS AND THE LIKF.

952,455. Specification of Letters Patent.

Application filed January 27, 1908, Serial N 0. 412,851.

Patented Mar. 22, 1910. Renewed February 11, 1910. Serial No. 543,369.

To all whom it may concern: may be made between the bristles of the Be it known that I, VILLIAM RICHARD brush, forming the tips of the pole pieces, iMAODONALD, a subject of the King of Great and the cores, the bristles have been carried Britain, residing at Haltam street, Portright through their wooden base or support 60 land Place, London, in the county of Middle and made to press against the sole-plates to sex, England, have invented new and useful which they are attached. Improvements Relating to Cleaners for At various intervals along the batten Ships Hulls and the Like, of which the folspecially shaped bass brushes C, C, are lowing is a specification. placed to assist in the cleaning of the vessel.

This invention relates to improvements in A number of these battens are connected tothe devices employed for cleaning the iron gether by means of flexible joints (Z, as shown or steel hulls of sea-going vessels, pontoons in Fig. i. The whole apparatus thus forms or any metallic surface subject to magnetic a. mat which may be hauled fore and aft attraction, from barnacles and other growths. along the ships side by various external The invention consists in making a kind means, such as by suitably arranged lines of mat of separate battens flexibly conthrough the hawse-holes to the vessels nected, these battens bearing brushes and winches. electromagnets which latter through their The steel or iron Wire brush whlch has a attraction for the iron surface apply the curved surface, as is shown in Fig. 5 fulfils brushes with the requisite pressure. Prefthree functions, viz :-that of making a good erably the brushes have iron bristles and magnetic contact with the uneven sides of the themselves form the poles of the electrovessel; that of acting as a brush in helping magnets. to clean the ship and thus making a better A cleaner constructed according to the inbed for itself; that of putting pressure upon vention is illustrated in the accompanying all the brushes mounted on the batten, it be drawings in which ing under complete control dependlng only Figure 1 is an outside View of a single upon the strength of the electric current supbatten. looking from underneath, its brushes plied to the windings of the magnet. being removed; Fig. 2 is a sectional View The operation is as follows :OW1ng to looking in a direction at right angles to that the curved surface of the said brush and the from which Fig. 1 is seen; Fig. 3 is an outflexibility of the bristles, if the n'lagnetlc side view looking from above; Fig. 4 is an flux is increased, the longer bristles of the elevation of the whole cleaner, and Fig. 5 is brush, in the center, will bend so as to allow an edge view of the same. the shorter bristles, as well as the greater As designed a number of battens a are mass of metal forming the sole plate to come provided each of which is fitted as shown in nearer to the side of the vessel, thus increas- Figs. 1, 2 and 3, with two or more electroing the lines of force or magnetic attraction. magnets, according to the strength required; The electromagnets are so placed that they each of these magnets consists of two steel are at their best advantage Whatever the poor wrought iron cores K, K which have sition of the apparatus upon the ships side. chamfered heads fitting into two sole-plates Both the bass and the wire brushes are so M, M; these latter are for the better distrimade as to be easily detached for the purbution of the magnetic lines to the bristles of pose of renewing, but this at the same time the brushes E, E. The sole-plates are makes the mat more general and eflicient in screwed to the battens and the brushes its working as different strength of bristles bolted by screws 1) to the sole-plates. The may be used according to the various reyoke LT of the magnet is recessed to receive quirements. the cores, this also being for the freer pas- What I claim is: sage of the magnetic lines. The ends of the 1. In an apparatus for cleaning submacores are turned to a smaller diameter and rine iron surfaces the combination of a pluthreaded to receive a nut so that they may rality of battens, flexible connections be; be fastened firmly to the yoke. L, L are the tween said battens, and brushes fastened to coils of the magnet which are made sepaone face of said battens, with electromagnets rately and placed on their respective cores also rigidly secured to several of said batbefore the yoke is fixed. tens, the poles of said electromagnets pro- In order that eflicient magnetic contactjecting the same way as the brushes.

2. In an apparatus for cleaning submarine iron surfaces, the combination with a plurality of battens, and flexible connections between said battens, of a plurality of electromagnets, and a plurality of brushes of iron bristles, said brlstles forming the poles of the .electromagnets.

3. In an apparatus for cleaning submarine iron surfaces, the combination with a plurality of battens, and flexible connections between said battens, of a plurality of iron cores, windings on said cores, sole plates secured to said cores, bases adjacent to said sole plates, and iron bristles piercing said bases and making contact with said sole plates.

4. In an apparatus for cleaning submarine iron surfaces, the combination with a plurality of battens, flexible connections between said battens, and a plurality of brushes secured to said battens, of a plurality of electromagnets secured to several of said battens, said electroinagnets and brushes facing the same way, and the brushes having bristles of greater length in the middle than outside, so as to present a convex surface.

I11 testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

W It. MACDONALD.

Witnesses ALBERT EDWARD ODELL, LEONARD EDMUND I'IAYNES. 

